See my products using their products at www.rh.com. The PM series amplifiers in our ST series speakers are 100% class-d amplification using these modules.

Does that mean that you are not using D2AUDIO?

AUSTIN (Texas) – April 6, 2004 - - - D2Audio announced today that Renkus-Heinz, a technology leader in high quality commercial and professional sound, is the first to use D2Audio’s intelligent digital amplifiers in steerable column speakers. The small size and extraordinary sound quality of D2Audio’s powerful digital amp make it a natural fit for Renkus-Heinz’ ultra slim, line array speakers.

Another question is if you use the asp modules as they come, or if you do some modifications, see also tweakaudio.

Does it seem plausible to make 2 1k (into 4 ohms) aussie amps and bridge them? aren't we talking near 3.5k (4k of toroidals?)

*** EDIT ***

3.5 k into 4 ohms obviously... would it cope bridged at 4 ohms?

Bridging is suppose to give you the theoretical 4x power increase
but is not usually the case because the power supply is not
regulated.

If you take the AV800-1KW and bridge two for ~1KW @ 8 ohm,
maybe you can drive more power into 4 ohms if you use
a bigger transformer and you use giant heatsinks. /hehe

Generalizing;
If you play test tones at 4 ohm bridged, this will create more
burden on any amplifier than just playing music. Music won't
be continous and in reality it may work. It depends on if the
load is drawing alot of power. Suppose you bridged two AV800's
and used it to drive horns and midrange speakers, this situation
will not be as problematic as driving a subwoofer. Midrange
drivers won't consume all that power and horns will consume
even less. There is less stress on the amplifier at 4 ohms bridged.
But if you were to drive a subwoofer array, this will place more
burden on the amplifier.

I have a home amplifier that is only rated for 600 watts into
8 ohms, but I'm able to operate it with a 1 ohm load driving
tweeter arrays because the tweeters are not consuming high
power. /hehe I benefit from the headroom.

There is nothing worse than building your own monster
amplifier and spending alot of money on the project
only to realize you can buy one 'off the shelf' that has
similar features for a reasonable price.